Type-writing machine.



No. 853,562. Y Y Y 'Y PUBMED mlfl, 1907. Si L, mmaa s A. cooK. @EFE f@ Mmmm y 1D Q ,By rfmfTroeA/Ey 3, @im mw m. o e@ w m@ a@ r ,m w L H N we 1 M @P Y E ,W A M s [J n D M a E r m T Y mm, N AA K ...n Y PnNnw mve w *Gm ,r A i P um Y MTA/5655s Improvements'in Ty e-Writi vIloA whichre ulates the limit o ,t g

ment of t e carriage to begin a netvlies; the

'of the Well known UNITED STATES n A'rnNT OFFICE.

EMIL L. PFUNDER AND FRANK A. 000K, 'or HARTFORD, CONNECTI- CUT, AssIoNoRs 'ro UNDnRWoon TYPEWRITER COMPANY, or

NEW Yoan, N. Y.

TYPE-inmune MACHINE.

Specication of Letters Patent.

Ilatented Kay 14, i907.

Appliances man raam 13.1907. sel-in No. 358,025.

To all whom it may con/cern:

Be it known that we, EMrnL. Prussian and FRANK` A. Coon, citizens of the United States of America, re'sidin at Hartford, in the county of Hartford and tate of Connecticut, have invented certain new'anduseful Machines, of which the following 1s a speci cation.

This invention relates to the mechanisms' of t -Writing machines .which regulate the Widt of the side mar on the page of writing; and it is especial adapted to machines lnderwood type, in which margin regolati devices are placed upon the frontpart of t e machine convenientto the operator. In said machines, the mechanism for ringing a bell and locking the keys at the end of the line comprises a slide adjustable along a bar or rod on the frame and in front of the carriage; but the ra Ge of such adjustment was limited owing to Ithe peculiarities of construction oi certain por tions of the margin-regulating mechanism. Themeans for stoppingthe carrie e when returning to be 'n a new line inclu ed another slide mounts partly upon said rod and partly upon the .carriage rail; but the adjustment of the last-mentioned slide was limited by reason of' the presence of the line-locking mechanism already referred to.

range offadjustment of both margin re u laters; and to secure'this result, both sli es nage. Upo teeth are cut; to be engaged by a paWl'pro-- vided upon the 'slide wlnc regulates the endof-the-hne mechanism ;.While u on said carriego-rail are cut 4teeth enga e by the slide o t Ve return more latter teeth being formed upon'said rail'for nearly its entire le h; the slide having a pawl to eng sai teeth; and prefers ly `each of the s des is mounted partly upon Vsaid rod and partly upon the rail. vSaid rod is in front of said rail and ispreferably cylinldrical, and mounted thereon is an arm extending backwardly and havin vat its free end a cam-device to be engage by a corred spending cam-projection usually provided upon the carriage. The carriage is thus en Oneof the main objects of the 'nesentin-iV v'invention is to provide for greatly increased' abled te operate said arm, and the latter in turn has a projection to enga e a bail which extends the entire le h of saicyindrical rod or'shat, and is pre erably hinged upon the latter in suoli manner that sufficient clearance is provided to permit said slides to move freely between the ends of said bail. Extend' downwardl from said bail is an arm', Whic at the roc -ng of the bail, rings a bell and locks the keys against depression in the same manner asis usual upon said Unby said arrnat any point to which the arm and its slide-:nay be adusted along the iront of the carriage. Thus oth slides or mar 'n gage regulators may be placed either ar Aa art or near together at either erdfrerney of t e carriage travel, thereby rendering it practicable to secure an width of margin on either the right or the eft hand side of the written sheet, and it will be understood that said features of the invention may be employed in connection with constructions of margin-regulating mechanism other than those' speciiicallys iown and describedherein.

In the accompanying drawings, Figure 1 is a front pers ective view 4of a portion of an fUnderWo typciirritingv machine, ernbodyi the present improvements; the lprts being' s ownit; positionY to lock' the cys Vagaiist depression. Fig. 2 is a perspective 'view similar to Fig. 1 but showing; the keys released for further depression. A ig. 3 is a similar view but showing the key releasing mechanism in a different' position, slightly retracted from that shown in Fig 2, and returning to normal position. 4 is a simi Writing machine, and 2 the carriage, whic is connected bv a strap 3' to a s ring barrel 4 a rail 6, preferably cylindrical. Mounted partly upon said rali and partly upon a Vparallel rod 7 in front thereof, is a slide 8 having a stop 9 to engagea releasable stop 10 formed upon an arm ll pivoted Vat 12 upon the carriage and having a release key 13. A pawl derwood machine@ Said bail is engageable IOO and is provided with a iront rol 5 to run upon 14 provided with a handle 15 and pivoted at 16 upon said slide has teeth to enga e a series of ratchet teeth 17 formed upon t e front side of the carriage-rail 6 and which may extend the entire length thereof. By pressing the handle 15 toward the left, the awl 14 is rotated away from the teeth or rac thus releasing theslide 8, which :may be sli `pcd as far as desired toward the left along t e bars 6, 7. A fingerpiece 18 is also provided upon the slide, to be grasped simultaneously with the handle 15, when it is desired to release the pawl and adjust the slide toward the right. The slide 8 is of the usual construction and operation; but the teeth 17 on the rail 6 extend along the rail 6 a sufficient distance to permit an adjustment of the slide 8 for Ia distance equal to about the entire length of the runy of the carriage. With the exception of the increase in the number of the rack teeth, the construction so far designated is usual on said machine. In said Underwood machines, a bell 19 is struck by a hammer 20 to warn the operator of the near completion of the line of Writing; [the hammer being ivoted at 21 and operated by a trip 22, which is pivoted at 23 u on a pendent swinging arm 24. Then sait arm swings forwardly from the Arig. 4 position to the lig. 3 position, it rides upon a cam 25 formed upon the bell-hammer, depressing the cam and lifting the hammer, the latter falling when the trip 22 passes the cam 25. Upon the trip 22 is also carried a pin 26 to engage an arm 27 provided upon a lrock shaft 28, said pin thereby turning said shaft, and the latter operating to lock the keys. `This is done by means of a transverse rod 9 carried upon arms 30 upon the shaft 28 an movable forward thereby beneath hooks 31 projecting up from key-levers 32 which operate ythe type bars 33, (the latter striking rearwardly against the front side of a platen 34, Pig. 5). l The locking of the keys is seen at Fi 1. If it be desired to release the keys, to a d a few more characters 0n the end of the line of writing, a button 35 is pressed rearwardly so that a cone-like cam 36 thereon mayengage the yielding arm 24 and ress the same toward the right, so that t ein 26 may sli ast the arm 27 and release tlie latter, whicii 1s returned to normal position by a sprin 37, thus releasin the keysf The line -loc lng devices just escribed are in common use on said machine. According to the present invention, .arm 24 forms one larm of the bail, Whichis hin ed upon the ends of the rod or shaft 7, theA other arm being designated as 38, and theftransverse bar which connects said arms, as 39. The rod 7 is rigidly secured upon the framework by nuts 40, and the bail 1s loosely hin ed thereon. The bar 39 stands suflicientlyaove the rod 7, to clear the slide 8, as Well as the companion slide now to be' described. The bar 39 can beswung back wardly by a rejection 41 `formed upon an arm 42, which) is loosely mounted upon the bar 7, to slide therealong and to ,rock up and down; said arm being confined in a recess 43 formed in a slide 44, which is mounted upon the bar 7 and rail 6 in 'a manner similar to the mounting of the slide 8 thereon. Said arm 42 carries at its rear free end a (transverse) cam-device 45 engageable by the usual cam projections 46 47 provided upon the front of' the carriage 2. Wheny the projection 46, during the letter-feedin movement ofthe carriage, rides upon the evel 48 at the right hand end of the cam-device 45, said device 45 is depressed and the arm 42 rocked on the rod 7 and the projection 41 forces the bar 39 rearwardly to swlng forwardly the arm 24 and cause the trip 22 to force down the cam 25 and lift the'hammer 20; the movement of the -arm 24 continuing until the hammer is released and the bell sounded. The yfurther projections 46, 47 to the position vshown in `ig. 1 and causes sufficient additional movement of the arms 42bail 39 and pendent arm 24, to lock the keys through the instrumentality of shaft 28 and rod 29 in themanner already described. The memberj4'1, 42 has a transverse c lindrical perforation (indicated by dotted 'nes at F1 8) to fit upon the rod 7, to permit the roc `ng of the said member.

Upon the slide 44 is pivoted at 49 a pawl 50, having teeth 5 1 to engage a series of rack teeth 52 cut upon the rear side of the rod 7, a spring 53 serving tohold the teeth 51 normally in enga ement-with the rack. A l1an- ,dle 54 upon t e awl servesto release the awl from the rac so that by pressing said liandle to the left, the slide 44'ma be sll ped along to the desired point u on t e mac me. Theslide maybe moved free y to the right by pressing u on a fin er-piece 55 rejecting orwarr 1y om the s ide, the aw 51y riding idly over the rack 52. A tooth or hook 56 is jection 46 upon the carriage to arrest the latter at the point in its travel Where the slide 44 may have been set to effect sto page of the carriage; and to return the bai 39 and arm 24 to normal osition after actuation, a spring 57 is provi ed which engages a crank arm 58connected with said bail. v During the letter-feeding movement of the carriage to the left, the tappet 46 first strikes the incline 48 and depresses the arin 42 to ring the bejlvjpst before the Fi 3 position is reached. en the carriage as proceeded a few more letter-spaces (each e ual to the distance between each tooth and ilhe next on rack 6 or 7), the tappet 46 strikes the higher cam 48, thereby de res'si the arm 42 still more, and rocking t 'e sha t 28 to lock the skeys, as at Fig. 1; the rojetion 47 in the mean time having serve j to prevent arm' 42 movement of the carriage brings the eam.

IOS

IIC

formed upon th'e slide 44 to engage the pro;

roll and a rail upon which said roll runs, the combination of a rod parallel therewith, a margin-stop slide mounted upon said rail and rod and having a stop Yto engage a sto which is provided upon said carriage and aiso having a pawl to engage a series of ratchet teeth upon the front side of said rail, said series eX- tending nearly the entire length of the rail, a second slide mounted upon said rail and rod, a lawl upon said second slide provided with a andle and having a tooth to engage a series of ratchet teeth formed on the rear side of said rod and directed oppositely from the teeth upon said rail, an arm journaled upon said rod and confined in a recess in said second slide, a bail "ournaled loosely upon the ends of said shait and extending along the latter and engaged by a projection upon said arm, bell-ringing and line-locking mechanism operated by said bail, and a cam device upon the free end of said arm to be engaged by a part upon the carriage to rock said bail.

12.v In a typewriting machine having a carriage, the combination of a rod, a slide mounted u on said rod, a pawl u on said slide provi ed with a handle and aving a tooth to engage a series of teeth formed on said rod, an arm journaled upon said rod and confined by said slide, abail ournaled loosely u on the ends of said rod and extending a ong the latter and engaged by a projection upon said arm,bell-ringing and line-locking mechanism o erated by said bail, and a cam device upon t e free end of said arm to be engaged by a part upon the carriage to rock said bail.

13. In a typewriting machine having a power driven carriage provided with a front roll and a rail upon which said roll runs, the combination of a rod arallel therewith, slide mounted upon said rail and rod and having a stop to engage a stop which is provided upon sai carriage and a so -havinga pawl to engage a series of ratchet teeth upon said rail, a

power-driven carriage provided with a front roll and a rail upon which said` roll runs, the rail being supported by its ends upon the framework, the combination of a rod in front of said rail and parallel therewith, a margintop slide" mounted upon said rail and rod an having a stop to engage a sto which is provided upon said carriage and a so having a pawl to engage a series of ratchet teeth upon the front side of said rail, said series eX- tending neariy the entire length of the rail, a second slide mounted u on said rail and rod, a pawl upon said secon slide provided with a andle and having a tooth to engage a series of ratchet teeth formed on the rear side of said rod and directed oppositely from the teeth upon said rail, a spring for the lastmentioned pawl, an arm journaled u on said rod and confined in a recess in sai second slide, a bail journaled loosely upon the ends of said shaft and extending 4along the latter and engaged by` a projection upon said arm, bell-ringing and line-locking mechanism operated b said bail, a returning spring for said bail, anni a cam device u on the free end of said arm to be engaged gy a part upon the carriage to rock said bail to rm a bell and lock the keys; the second slide aving fixed thereon a stop to engage said rojection on the carriage to arrest the letterceding movement of the latter.

EMIL L. PFUNDER. FRANK A. COOK.

Witnesses:

EDW. J. MANNING, EDWARD P. STORY. 

